← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 439 · 40 sums
TalentJR

The method (90, 180, equal): Complement of a = 90 − a. Supplement of a = 180 − a. Lines crossing: vertically opposite angles are equal; a linear pair adds up to 180°. Parallel lines: corresponding angles equal, alternate interior angles equal, interior angles on the same side add up to 180°. One angle d° more than the other: bigger = (total + d) ÷ 2.

NameDateTime takenScore ___ / 40
  1. 1.Two parallel lines are cut by a transversal. One interior angle is 63°. What is its other interior angle on the same side of the transversal (in degrees)?
  2. 2.Two straight lines cross each other. One of the angles formed is 36°. What is the angle next to it on the same line (in degrees)?
  3. 3.Two angles are supplementary. One is 44° more than the other. What is the bigger angle (in degrees)?
  4. 4.Two parallel lines are cut by a transversal. One angle is 60°. What is its corresponding angle (in degrees)?
  5. 5.Two angles are supplementary. One is 82° more than the other. What is the bigger angle (in degrees)?
  6. 6.Two parallel lines are cut by a transversal. One interior angle is 32°. What is its other interior angle on the same side of the transversal (in degrees)?
  7. 7.What is the complement of 55° (in degrees)?
  8. 8.What is the complement of 10° (in degrees)?
  9. 9.Are 31° and 149° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  10. 10.What is the supplement of 155° (in degrees)?
  11. 11.Are 75° and 15° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  12. 12.What is the supplement of 36° (in degrees)?
  13. 13.What is the complement of 72° (in degrees)?
  14. 14.What is the supplement of 158° (in degrees)?
  15. 15.Are 78° and 24° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  16. 16.Two parallel lines are cut by a transversal. One interior angle is 115°. What is its alternate interior angle (in degrees)?
  17. 17.What is the supplement of 86° (in degrees)?
  18. 18.Two parallel lines are cut by a transversal. One angle is 47°. What is its corresponding angle (in degrees)?
  19. 19.Two angles are complementary. One is 2° more than the other. What is the bigger angle (in degrees)?
  20. 20.What is the supplement of 44° (in degrees)?
  21. 21.Are 37° and 143° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  22. 22.What is the complement of 73° (in degrees)?
  23. 23.Two angles are supplementary. One is 126° more than the other. What is the bigger angle (in degrees)?
  24. 24.What is the complement of 61° (in degrees)?
  25. 25.What is the supplement of 19° (in degrees)?
  26. 26.Two straight lines cross each other. One of the angles formed is 59°. What is the angle next to it on the same line (in degrees)?
  27. 27.Two angles are supplementary. One is 62° more than the other. What is the bigger angle (in degrees)?
  28. 28.What is the complement of 32° (in degrees)?
  29. 29.Are 78° and 102° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  30. 30.Are 14° and 166° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  31. 31.What is the complement of 26° (in degrees)?
  32. 32.What is the complement of 76° (in degrees)?
  33. 33.Two angles are supplementary. One is 20° more than the other. What is the bigger angle (in degrees)?
  34. 34.What is the supplement of 95° (in degrees)?
  35. 35.Two angles are complementary. One is 10° more than the other. What is the bigger angle (in degrees)?
  36. 36.Are 43° and 56° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  37. 37.Two straight lines cross each other. One of the angles formed is 85°. What is the angle next to it on the same line (in degrees)?
  38. 38.What is the complement of 25° (in degrees)?
  39. 39.Two parallel lines are cut by a transversal. One angle is 102°. What is its corresponding angle (in degrees)?
  40. 40.Two parallel lines are cut by a transversal. One interior angle is 37°. What is its alternate interior angle (in degrees)?

Answer key

  1. 117
  2. 144
  3. 112
  4. 60
  5. 131
  6. 148
  7. 35
  8. 80
  9. Supplementary
  10. 25
  11. Complementary
  12. 144
  13. 18
  14. 22
  15. Neither
  16. 115
  17. 94
  18. 47
  19. 46
  20. 136
  21. Supplementary
  22. 17
  23. 153
  24. 29
  25. 161
  26. 121
  27. 121
  28. 58
  29. Supplementary
  30. Supplementary
  31. 64
  32. 14
  33. 100
  34. 85
  35. 50
  36. Neither
  37. 95
  38. 65
  39. 102
  40. 37

Free maths worksheets lessons, practice and worksheets at talentjr.in/maths-worksheets